Crimping machine



nl 2 ,2 E .f1 a 4 n 4 .E a w 1, S 4 .n .E NNW WH. DOO A MM2 HG .N WP .M JR C Jan. 9,1923.

FILED APR.

uenZP/v g. M

- which the following is specification.

Patented dan. 9, i923.

`srirrrf altaar Josnrrr w. Helena/'rrr or onreaeo,v ILLINOIS..

MACHNE.

Application filed April 20, 1920. kSerial No.y 3,75,.??.5.Vr

To all whom t1/moy concern Be it known that l, loser i lll. l-loonwrN, a citizen ol the United States, and a resident of Chicago, in the county et' Cool: ant State of Illinois, have vinvented new and useful y linprovements in Crimping` ,lilach ines7 of lilly invention relates 'to an improved crinnpingv machine7 designed particularly for crimpingA longitudinally strips y or paper which have been perforated transversely'so that the crimped strips may be conipactlyr 'folded and separated along the*ptnicorationv lines into pellets which can be readily inserted into pocketslorinedfin beards or other devices. `v y ln prior machines such crimping is `accomplished by passinglthe strips between crimping rolls. This method of crimping` hasl disadvantages which myr improved man chine overcomes. ln my 1naeliine,` the 1plankv strips are laid over a rowo'f vgrooves andv die members then successively brought against the strip to successively depress seetions thereof into the grooves, the sequence hof operation oll the dies beingsuehthat the strip will not be torn but `will he accurately crimped without strain. y

l-r'maehine incorporating;v the yarious features of my inventionis shown on the acconipanying drawingsg` inwhichm- Fig. 1 is a plan View,

Fig. 2 is an eleyztional 'View of the lett y side et the machine, e

Fig. 8 is an enlarged sectional View on plane 3`-3, Fig. 1, 4

Fig. @l isa sectional view oniplanc Fic'. 3, i

Fig'. 5 is a sectional View on planeJ-o, Fig. 4, and f Fig. G is a perspective Viewv ot a lengtlr` of the finished crimped product. y

The supporting structure for ,my improved machine, comprises the leedy plate- 1 0` mounted on legs 11. v Onthe hed plate is supported the crimpingdielilock 12 by means oit' the side walls 13 and 14. rllhe l.die block has in its top a row crimping);grooves15, extending from ylett to right andheing here shown of vll-shape. ln trent ofthe die block is the feed shelf 1G, partly supported by the die block and partly hy thelegrs 17 restino; on the bed 4plate l0. n

l' and 1 arallel with the 'cli Behind the die bloc v criinpinp` grooves is the com sha'tt 'le wi at its ends is j'ournaled in the `hear cured the pivot screw 47.

` trames 19 and 20, rising frointhehed plate 10. At its right end the shaft carries the f. gear wheel 21 which isengaged by the driving pinion 22. A `loraclet 23 Vsupportedon the hed plate 'l0 supports the shaft 24C which atits inner end journals the pinion??J to `rether `with the grooved collar 25. The pulley 26 is also mounted on `the sha'lft and is adapted 'for connection by a belt` (not shown) with a suitable driving source.V The pulley has frictional engagement with the r'collar E25 `and the collar is normally loc-hed against rotation by they engagement otl the'y tooth Qfwith the projection QS on the col- `lar,` the tooth loeng` lormed on the lever 29 y hinged at itsrear end on vbracket on the hed plate 10. A lint; 31 connects the lever at its front end with lthe toot pedal hinged on the shalt Blextending between the `rear legs ofthe supporting` structure. yThefloot pedal and lever 29` are normally held up 'by nieansol the compression rspring` atinterposed between the loyerA 29 and the bedv plate `10 (Fig. 1). ln this position they tooth 27 is held in theypath of the projection 98 and the cani shaft cannot he rotated. When the toot levert is depressed7 the tooth will `he withdrawn and thev pinion 22 will he free tof` rotate the gear 21 vand the cam shaft. n, f Overhanging'the die block 12 at the sides thereoiQare the L shaped guide frames 35 and 36 which at .their rear ends receive the shalt 18. These rameshave in their front emlswthe rectangular vertically extending` guide spaces 37 and 3S for guiding' the die `plates f These die plates are arranged in a horizontal row withinthe guide spaces and their lower ends are l1 shaped to litt-he respective lf shapedgrooves l5 in the die bloelrlQ. n Y y Outside of kthe frames and 36 the shalt 18 is olf reduced diameter to prov-ide the shoulders 40 and 41. Mounted on the shaft and secured against the shouldeiwl() `by the nut the row of calins 43, there being` as many cams as there are diekplates. At the other end ol' the shaft a row of cams let is secured agrainstthe shoulder 4-1 by the nut 425.@ .Extending to the le'ft vfrom the `traine 35 is the bracket 1G between whose 'depending' outer end' and the 'frame is se- On `this screw are' hinged thecam levers 48 which extend vllO rearwardlvy from the respective dieplates 39 j and in the path'o'lf the respective cains'l.'

The frame 36 has a similar brac-liet i9 supporting the pin on` which are hinged the cam levers 5l which extend rearwardly from the right ends oi' the respective die plates 39 and over the respective cams Suspended from the rear end of each lever by means oiC a cord 52 is a weight 53, these weights tending to hold the cam levers against their respective cams.

The corresponding arms of the levers 48 and 5l have the forwardly extending tongues 54k and 55 which extend respectively into the notches or openings 56 and 57 at the endsot the respective die plates. lilith this arrangement, the cam arms and die plates can be very readily assembled in place on the niacliine. Each die plate' has preierahlj.Y the extension 58 which is VShaped to lit the die block grooves.

In Fig. 3 the shape and arrangement of the cams is clearly shown. The cams are in the form of disls which are cylindrical eX- cept for a cam hump or projection 7L whose outer surface is cylindrical with its center at the axis of the cam shaft. AThe cam dislrs are od-set circumferentially a suiiicient distance so that the cam humps will engage suc'- cessively with the cam arms, the ott-set ott the cams lil heilig the same as that for the cams 43 so. that two cam groups raise their respective cam arms to cause the die plates to shift vertically with uniformity. The inner cam arms of the sets connect with the ends of the rear die plate, while the outer armsl connect with the front die plate.y The odset arrangement of the'cams is such that the inner cams are in advance, rotation being in the direction indicated on F ig. 3. During each rotation of the camshaft, the die plates are thus raised successively beginning with the .rear plate and ending with the front plate, the cani off-set being sufficient to cause each die plate to engagev fully in its corresponding die groove before the next plate is brought :into .its groove. l

Figs. `l and 2 show a paper blank strip S positioned on the table 1G against the guide bracket 59, ready to be .inserted into the niachine. The strip is shifted rea'nwardly over the die grooves l5 and into the under cut spaces or notches 60 formed at the bases of t-he trames 35L and 36. The operator then steps on thev pedal lever and releases the driving mechanism whereupon the cam shaft rotates, the die plates then successively engaging in the die grooves 15. First the rear die plate comes down and carries the paper over the rear notch into the notch and pulls it. When the plate is'iiully in the notch to holdthe paper, the neigt die plate engages the paper and draws it down into the lnent notch and so on until the` front plate has carried the lpaper into the corresponding groove. During each enga( yment ot a plate in a groove, the paper is drawn transverselyv Athe left side o' the die block `with the cani lug l forated along lines rearwardly to supply stock for iilling the grooves. The notches 60 permit suiiieient verlap oipaper so that the rear groove will loc fully filled when the rear plate enters it. ln order to retain the crimped and folded form of the strip the die plate l2 is preferably heated, a pipe 6l being shown below the die plate supplying gas to burners G2. rlhe frames 35 and 36 at their front ends have laterally: extending wings 63 for assisting in properly guiding the die plates. `Where the die plates are long, a center' i'rame 64, similar to frames 35 and 36, may be provided as shown,l to receive the die plates at their centers.

ljeetor mechanism is provided for eject ing crimped strips from the die grooves. EX- tending Yfrom the hed plate i() are the inner and outer posts G5 and 66 for guiding the rod 67, the posts being provided with top plates G8 and G9 respectively, for holding` the rod in the grooved tops of the posts. At its inner end, the rod terminates Ain a head T0 having the if -shaped tongues 7l for engaging in the die grooves Between the posts and 5G the rod is received by a clamping bloei: 1 2 held thereon' hy means of a setgerew 72. Pivoted at its rear end on the bed plate l0 the eain lever Tet which has a cam lug 'T5 engaging in the cam groove 7G ot the cam TT mounted on the left hand oi the shaft 1S. it its iront end the cam lever has the pin 'TS which extends ,into the opening T9 of the clamp Normally, the cooperation of the cam 77 with the cam lever causes it to hold the rod 67 in its extreme position to the lett and with its head 70 at out of range ot the die plates. After the die plates 39 have been operated to crimp a strip and have been removed ironi the die bloclr l2, the deflected section 7G ot the cam groove 76 co-operates to swing the cam lever 'Ta to Vthe right to cause vthe rod (3T to sliiit its head T0 through and along Ithe die grooves 15, the projections 'Tl on the head encountering the crimped striil) andv shifting it toward th@ right Ll'roin the die block and onA to the chute 80. rii'ter the ejector mechanism has been restored to normal position, the operator releases thepldal lever to stop the niachine or she can quickly insert another blank strip into the machine for the next crimping operation. l

Fig.; `(3 showsthe` finished crimped strip.v rl`he paper blanks may he transversely per- Sl as indicated in Fin'. l and thevarious transversesections prvided with numbers or other information giving legends. been crirnoed longitudinally` to the form shown in Fig. 6, it can be fully compressed transversely along the crimped lines and separated into pellets hv tearing alongl the perforation lines Sl. The pellets or interina- After the strip has then vI roo Al l (l iis"- tion bearing sections are thus very compact and can be readily inserted in small openings or pockets.

l thus provide a very simple, durable and efficient machine igor crimping paper strips. l do not, ot course, desire to be limited to the precise construction, arrangement and operation shown and described as changes can no doubt be made without departing trom the scope of the invention.

l claim as follows:

l. ln a crimping machine, the combination of a die block having a row ofdie grooves therein, guide trames rabove said grooves, a row o' die plates supported by and reciprocable in said trames toward and away from said grooves, a set of cani levers connected with each end of said plates, a cam shat't, two sets ot cams on said shaft *for said sets of cam levers, the cams of the sets being correspondingly circumferentially oil-set whereby during rotation of said shaft said levers will bereciprocated to apply said plates successively in said grooves.

2. In a crimping machine oit the class described, the combination ot a die block having a plurality of crimping grooves therein,

a plurality of die plates for co-operating with said grooves, guide trames for supporting said plates, a cam shart, two sets ot' cams on said shaft, similarly circumferentially oli-set, two sets of cam arms co-operating respectively with said sets of cams, they arms of each set having connection at their ends with the respective ends of said die plates whereby during co-operation et' saidv l cams with said arms, said plates will be reciprocated and brought into operative association with said grooves to crimp material placed over said grooves.

3. In a crimping machine of the class described, the combination ot a die block having a plurality of crimping' grooves therein, guide trames over said block, a row of die plates vertically recipi'ocable in said trames toward and away from said grooves, a set oi cam levers for each end oil? said row ol plates, the respective arms of each set having pivotal engagement with the eiid of the respective plates, a cam shaft, a set of cams for each set oie arms on said shaft, the cams oi" said sets being correspondingly circumterentially oil' -set whereby during rotation of said shait said arms will be successively swung and said plates successively vertically reciprocated. and brought successively into engagement with their respective cam grooves, to crimp material placed between said grooves and plates.

.4. in a crimping machine of the class described, the combination ot a die block having a row et crimping `roovcs therein, guide trames over sa d grooves, a row of die plates vertically reciprocable in said frames toward and awayi'rom said grooves, a set ot cam arms extending rearwardly from each end ot said row of plates, the arms of each set having tongue and groove connection with the respective ends of said plates, a cam shaft, a set of cams for each set oit arms on said shaft, the cams of said sets being correspondingly circumferentially oitset whereby uponr rotation oi said sliaictthe respective arms of said sets will be swung to cause successive reciprocation of said plates into successive engagement insaid grooves.

'ln a crimping machine of the class described, the combination of a die block having a plurality ot crimping grooves therein, a rowr et die plates, means Vfor supporting said plates tor reciprocation toward and away from said grooves, means for successively reciprocating said plates to bring' them successively into said grooves whereby materia-l placed over said grooves will be crimped, ejector mechanism, and means tor` shifting said ejector mechanism across said block after a crimping operation to remove the crimped product from said grooves.

6. ln a crimping machine of the class described, t-he combination of a die bloclr having a rowof crimping grooves therein, a row ot die plates over said grooves, trames for supporting said plates, means for shitting said plates successively into said grooves to crimp material placed over said grooves, an ejector head having a number of projections for engaging in saidgrooves, and means for shitting said ejector head with its projections through said grooves to eject the finished crimped'product from said grooves and die block.

7. In a crimping machine, the combination of a die block having a row oic crimping grooves therein, supporting Atrames over said grooves, a row of die plates reciprocable in said trames toward and away from said grooves, a cam shaft, cams on said shaft, cam arms extending from said plates into the paths oi? said cams, said cams being arranged to co-operate with said arms to cause successive engagement ot said plates in said grooves whereby to crimp material placed over said groove-s, an ejector head, a cam on said cam shaft, and a cam arm co-operating with said cam and connected with said ejector head to cause reciprocation ot said head over said lblock to eject therefrom a iinished crimped product.

8. ln a crimping machine, the combination of a die block having a row oi crimping grooves therein, guide :trames mounted over said grooves, a row ot die plates supported by and guided by said Vlrames, a bracket ,extending laterally from each guide trame behind lhe respective end oil" said row ot' plates, a set of cam arms pivoted on each bracket and isoy having' pivotal connection at its front end with the ends orf the respective plates, a cani shaft, a set oi" cams on said shaft 'for each set of arms, the cams or the sets being correspondinly circumiierentially oset Whereby said arms will be swung in sequence when the shaft is rotated, such sequential operation oi the arms causing reciproeation of ,aid die plates into successive engagement in said die grooves whereby to crimp material placed over said grooves.

9. In a crimping machine, the combination of a die bioclr having a row of crimping grooves therein, guide 'frames mounted over said zqrooifes, a-l roiv or die plates supported by and guided by said frames, a bracket eX- tending laterally lrom each guide frame behind the respective end of said row or" plates, set or cam arms pivoted on each bracket and having pivotal connection at its front end with the ends oic the. respective plates, a cam shaft, a set of cams on said shaft for each set of arms, the cams oi the sets being correspondingly circnmiferentially ofi-set whereby said arms will be swung into sequence when the shaft is rotated, such sequential operation of the arms causing reciprocation of said die plates into successive engagement in said die grooves whereby to crimp material placed over said grooves,

and ejector mechanism operable after a crimping,` operation to eject the iinished crimped product from the machine.

l0. ln a crimping machine, the combination of a die block having a row of crimping grooves therein, guide 'frames over said block, a roiv of die kplates reciprocable in said frames toward and away from said grooves, a cam shaft, a pair ol cams for each plate on said shaft, and a pair of arms supporting,` each plate, said arms being arranged in the paths of the respective pairs o'i' cams. cooperation ot said cams with said cam arms causing said die plates to be positively shifted into said die grooves. whereby paper placed over said grooves will be crimped.

n Witness whereof, I hereunto subscribe my name this 7th day of April, A. D. 1920.

JOSEPH lV. `lil'OODlVlN. 

